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Common Reed

Phragmites australis

Also listed as Arundo australis

Also known as Common Reedgrass, Ditch Reed, Reed Grass

grass☀️ full sun💧💧💧 high water❄ Hardy: Zone 3a – Zone 10b

Climate Match for your location

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A tall, vigorous perennial grass that thrives in wet areas, marshes, and along water edges, producing feathery plume-like seed heads in late summer and fall. It spreads rapidly via rhizomes and is highly invasive in many regions.

Why grow it

Common reed offers rapid establishment in constructed wetlands and water treatment systems where its dense rhizomatous growth and high biomass production can be advantageous for nutrient uptake and sediment stabilization. Compared to native wetland grasses, it establishes quickly in degraded or heavily disturbed wet sites. However, its vigor makes it better suited to contained management scenarios than to mixed native plantings.

Watch out for

The extensive rhizome network can be difficult to fully remove if the planting needs to be cleared later. In colder climates, winter dieback may leave large dead biomass that requires management. Ensure adequate water availability, as drought stress may trigger more aggressive lateral spread.

Overview

Form
Upright
Growth Rate
fast
Size
4–13′ tall × 2–4′ wide
Dormancy
deciduous
Family
Poaceae
biomass/mulcherosion controlfiberwildlife benefitnitrogen fixer
Nitrogen Fixer · Low

Native to the United States

Native Range

Eurasia, Africa, Australia

Native to: Alabama, Arkansas, Arizona, California, Colorado, Connecticut, District of Columbia, Delaware, Florida, Georgia, Iowa, Idaho, Illinois, Indiana, Kansas, Kentucky, Louisiana, Massachusetts, Maryland, Maine, Michigan, Minnesota, Missouri, Mississippi, Montana, North Carolina, North Dakota, Nebraska, New Hampshire, New Jersey, New Mexico, Nevada, New York, Ohio, Oklahoma, Oregon, Pennsylvania, Rhode Island, South Dakota, Tennessee, Texas, Utah, Virginia, Vermont, Washington, Wisconsin, West Virginia, Wyoming

Seasonality

Season of Interest

SummerFall

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Companion Planting

Plants well with